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DEAL, N.J. — Swimmers were ordered out of the ocean at a New Jersey beach after a report that a shark was spotted.

Deal police say the 6- to 7-foot shark was seen about 100 yards off the Deal Casino on Thursday morning.

Lifeguards on duty thought they spotted two sharks swimming in the ocean and was on high alert as they ordered all beachgoers out of the water, according to NJ.com.

“We figured it was too much of a risk to keep everyone in because the shark was coming in pretty close,” lifeguard Jake Smolokoff told NJ.com.

Swimmers were allowed back in the surf at around 12:45 p.m. because there were no sightings within the hour.

The shark was last seen headed north toward Long Branch following a school of dolphins.

The sighting comes a day before the 100th anniversary of the Jersey Shore shark attacks. In 1916, a series of shark attacks between July 1 and 12 left four people dead and one injured, but its the fear and terror that has left a lasting legacy throughout the years.

The terrifying summer of 1916 caused officials to surround beaches with mesh nets and more boats to patrol the area.

The sighting also stirred concerns as the July 4th weekend approaches. Thousands of people are expected to flock to the Jersey Shore starting Friday to enjoy the sunny, 80 degree weather and watch the firework display.